<div class="b">
<img src="{$CONTEXT.STYLEIMG}lc1.jpg" id="opacity_lc1" />
</div>

{literal}
<script type="text/javascript" language="javascript">
var opacitylc1 = new opacity_process();
opacitylc1.swapdelay = 3000;
opacitylc1.swap('opacity_lc1');
</script>
{/literal}